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Lesson 17.10 Recursion and Helper Functions

Divide-and-conquer is not the only example of recursion. It just happens to be one of the most interesting. But in this video we show that even some of the simplest of recursive definitions become…

From  Hannah Lee on October 19th, 2020 32 plays

Lesson 7.5 Bad Specifications

Not all specifications are good. Some of them – including those written by your instructor – are quite bad. In this video we talk about how to read a specification critically so that you…

From  Hannah Lee on September 24th, 2020 5 plays

Lesson 6.3 String Methods

Strings do not have a lot of functions associated with them. Instead, strings have methods. As we see in this video, methods behave almost exactly like functions, except that the syntax for calling…

From  Hannah Lee on September 16th, 2020 12 plays